dlls/msxml3/main.c

   1 /*
   2  *    MSXML Class Factory
   3  *
   4  * Copyright 2002 Lionel Ulmer
   5  * Copyright 2005 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #define COBJMACROS
  26
  27 #include <stdarg.h>
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winuser.h"
  31 #include "ole2.h"
  32 #include "msxml.h"
  33 #include "msxml6.h"
  34
  35 #include "wine/unicode.h"
  36 #include "wine/debug.h"
  37 #include "wine/library.h"
  38
  39 #include "msxml_private.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
  42
  43 HINSTANCE MSXML_hInstance = NULL;
  44
  45 #ifdef HAVE_LIBXML2
  46
  47 void wineXmlCallbackLog(char const* caller, xmlErrorLevel lvl, char const* msg, va_list ap)
  48 {
  49     char* buf = NULL;
  50     int len = 32, needed;
  51     enum __wine_debug_class dbcl = __WINE_DBCL_ERR;
  52     switch (lvl)
  53     {
  54         case XML_ERR_NONE:
  55             dbcl = __WINE_DBCL_TRACE;
  56             break;
  57         case XML_ERR_WARNING:
  58             dbcl = __WINE_DBCL_WARN;
  59             break;
  60         default:
  61             break;
  62     }
  63
  64     do
  65     {
  66         heap_free(buf);
  67         buf = heap_alloc(len);
  68         needed = vsnprintf(buf, len, msg, ap);
  69         if (needed == -1)
  70             len *= 2;
  71         else if (needed >= len)
  72             len = needed + 1;
  73         else
  74             needed = 0;
  75     }
  76     while (needed);
  77
  78     wine_dbg_log(dbcl, &__wine_dbch_msxml, caller, "%s", buf);
  79     heap_free(buf);
  80 }
  81
  82 void wineXmlCallbackError(char const* caller, xmlErrorPtr err)
  83 {
  84     enum __wine_debug_class dbcl;
  85
  86     switch (err->level)
  87     {
  88     case XML_ERR_NONE:    dbcl = __WINE_DBCL_TRACE; break;
  89     case XML_ERR_WARNING: dbcl = __WINE_DBCL_WARN; break;
  90     default:              dbcl = __WINE_DBCL_ERR; break;
  91     }
  92     wine_dbg_log(dbcl, &__wine_dbch_msxml, caller, "%s", err->message);
  93 }
  94
  95 /* Support for loading xml files from a Wine Windows drive */
  96 static int wineXmlMatchCallback (char const * filename)
  97 {
  98     int nRet = 0;
  99
 100     TRACE("%s\n", filename);
 101
 102     /*
 103      * We will deal with loading XML files from the file system
 104      *   We only care about files that linux cannot find.
 105      *    e.g. C:,D: etc
 106      */
 107     if(isalpha(filename[0]) && filename[1] == ':')
 108         nRet = 1;
 109
 110     return nRet;
 111 }
 112
 113 static void *wineXmlOpenCallback (char const * filename)
 114 {
 115     BSTR sFilename = bstr_from_xmlChar( (const xmlChar*)filename);
 116     HANDLE hFile;
 117
 118     TRACE("%s\n", debugstr_w(sFilename));
 119
 120     hFile = CreateFileW(sFilename, GENERIC_READ,FILE_SHARE_READ, NULL,
 121                        OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL, NULL);
 122     if(hFile == INVALID_HANDLE_VALUE) hFile = 0;
 123     SysFreeString(sFilename);
 124     return hFile;
 125 }
 126
 127 static int wineXmlReadCallback(void * context, char * buffer, int len)
 128 {
 129     DWORD dwBytesRead;
 130
 131     TRACE("%p %s %d\n", context, buffer, len);
 132
 133     if ((context == NULL) || (buffer == NULL))
 134         return(-1);
 135
 136     if(!ReadFile( context, buffer,len, &dwBytesRead, NULL))
 137     {
 138         ERR("Failed to read file\n");
 139         return -1;
 140     }
 141
 142     TRACE("Read %d\n", dwBytesRead);
 143
 144     return dwBytesRead;
 145 }
 146
 147 static int wineXmlFileCloseCallback (void * context)
 148 {
 149     return CloseHandle(context) ? 0 : -1;
 150 }
 151
 152 #endif
 153
 154
 155 HRESULT WINAPI DllCanUnloadNow(void)
 156 {
 157     return S_FALSE;
 158 }
 159
 160
 161 void* libxslt_handle = NULL;
 162 #ifdef SONAME_LIBXSLT
 163 # define DECL_FUNCPTR(f) typeof(f) * p##f = NULL
 164 DECL_FUNCPTR(xsltApplyStylesheet);
 165 DECL_FUNCPTR(xsltCleanupGlobals);
 166 DECL_FUNCPTR(xsltFreeStylesheet);
 167 DECL_FUNCPTR(xsltParseStylesheetDoc);
 168 # undef DECL_FUNCPTR
 169 #endif
 170
 171 static void init_libxslt(void)
 172 {
 173 #ifdef SONAME_LIBXSLT
 174     void (*pxsltInit)(void); /* Missing in libxslt <= 1.1.14 */
 175
 176     libxslt_handle = wine_dlopen(SONAME_LIBXSLT, RTLD_NOW, NULL, 0);
 177     if (!libxslt_handle)
 178         return;
 179
 180 #define LOAD_FUNCPTR(f, needed) if ((p##f = wine_dlsym(libxslt_handle, #f, NULL, 0)) == NULL && needed) { WARN("Can't find symbol %s\n", #f); goto sym_not_found; }
 181     LOAD_FUNCPTR(xsltInit, 0);
 182     LOAD_FUNCPTR(xsltApplyStylesheet, 1);
 183     LOAD_FUNCPTR(xsltCleanupGlobals, 1);
 184     LOAD_FUNCPTR(xsltFreeStylesheet, 1);
 185     LOAD_FUNCPTR(xsltParseStylesheetDoc, 1);
 186 #undef LOAD_FUNCPTR
 187
 188     if (pxsltInit)
 189         pxsltInit();
 190     return;
 191
 192  sym_not_found:
 193     wine_dlclose(libxslt_handle, NULL, 0);
 194     libxslt_handle = NULL;
 195 #endif
 196 }
 197
 198
 199 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
 200 {
 201     MSXML_hInstance = hInstDLL;
 202
 203     switch(fdwReason)
 204     {
 205     case DLL_PROCESS_ATTACH:
 206 #ifdef HAVE_LIBXML2
 207         xmlInitParser();
 208
 209         /* Set the default indent character to a single tab,
 210            for this thread and as default for new threads */
 211         xmlTreeIndentString = "\t";
 212         xmlThrDefTreeIndentString("\t");
 213
 214          /* Register callbacks for loading XML files */
 215         if(xmlRegisterInputCallbacks(wineXmlMatchCallback, wineXmlOpenCallback,
 216                             wineXmlReadCallback, wineXmlFileCloseCallback) == -1)
 217             WARN("Failed to register callbacks\n");
 218
 219         schemasInit();
 220 #endif
 221         init_libxslt();
 222         DisableThreadLibraryCalls(hInstDLL);
 223         break;
 224     case DLL_PROCESS_DETACH:
 225 #ifdef SONAME_LIBXSLT
 226         if (libxslt_handle)
 227         {
 228             pxsltCleanupGlobals();
 229             wine_dlclose(libxslt_handle, NULL, 0);
 230             libxslt_handle = NULL;
 231         }
 232 #endif
 233 #ifdef HAVE_LIBXML2
 234         /* Restore default Callbacks */
 235         xmlCleanupInputCallbacks();
 236         xmlRegisterDefaultInputCallbacks();
 237
 238         xmlCleanupParser();
 239         schemasCleanup();
 240 #endif
 241         release_typelib();
 242         break;
 243     }
 244     return TRUE;
 245 }